Home / 139,694,069.76-192,782,187.12-80,166,256.17

Finding the Fourth Proportional to 139,694,069.76, 192,782,187.12 and 80,166,256.17

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Solution

The fourth proportional to 139,694,069.76, 192,782,187.12 and 80,166,256.17 is: 110,631,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,694,069.76 : 192,782,187.12 = 80,166,256.17 : x
  2. Step 2: Convert to fraction form
    139,694,069.76/192,782,187.12 = 80,166,256.17/x
  3. Step 3: Cross multiply
    139,694,069.76x = 192,782,187.12 × 80,166,256.17
  4. Step 4: Simplify right side
    139,694,069.76x = 15,454,626,197,674,796
  5. Step 5: Solve for x
    x = 15,454,626,197,674,796/139,694,069.76
  6. Step 6: Final answer
    x = 110,631,941.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.